Update: thanks for your comments. I agree that there are too many clones and that the tree needs a rework.
I was sent this by Atanasije:
While researching Yugoslavian tank history and digging through archives me and couple of my friends found a lot of unique tanks, more than enough to build a tech tree. So that is what we did. Right now we are trying to promote our proposal as much as we can because most people think Yugoslavia does not have enough original tanks to build an entire tech tree.
More information will follow soon. Here’s the main proposal:
What do you think about it?